export const formatDate = (value) => {
  if (value == null) {
    return '';
  } else {
    let date = new Date(value);
    let y = date.getFullYear();// 年
    let MM = date.getMonth() + 1;// 月
    MM = MM < 10 ? ('0' + MM) : MM;
    let d = date.getDate();// 日
    d = d < 10 ? ('0' + d) : d;
    let h = date.getHours();// 时
    h = h < 10 ? ('0' + h) : h;
    let m = date.getMinutes();// 分
    m = m < 10 ? ('0' + m) : m;
    let s = date.getSeconds();// 秒
    s = s < 10 ? ('0' + s) : s;
    return y + '-' + MM + '-' + d + ' ' + h + ':' + m + ':' + s;
  }
}